function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ashmead, William Harris', 2],
    ['Awad, Jessica & Vasilita, Cristina & Wenz, Sophie', 2],
    ['Brues, Charles Thomas', 1],
    ['Buhl, Peter N. & Broad, Gavin R. & Notton, David G.', 4],
    ['Johnson, Norman F. & Chen, Huayan & Huber, Bernhard A.', 4],
    ['Kamalanathan, Veenakumari & Mohanraj, Prashanth', 1],
    ['Kamalanathan, Veenakumari & Mohanraj, Prashanth & Khan, F. R.', 5],
    ['Lomeli-Flores, J. Refugio & Rodriguez-Rodriguez, Susana Eva', 1],
    ['Madl, Michael', 4],
    ['Mineo, Giovanni', 3],
    ['Patra, Sunita & Rajmohana, K. & Debnath, Rupam & Sen, Souvik', 1],
    ['Pintureau, B. & al-Nabhan, M.', 4],
    ['Talamas, Elijah J. & Thompson, Joseph & Cutler, Amy', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);